Question : How many isotopes of hydrogen elements are there?
Option 1: 2
Option 2: 3
Option 3: 4
Option 4: None of the options is correct
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Correct Answer: 3
Solution : The correct option is 3 .
There are three isotopes of hydrogen: protium (¹ H), deuterium (² H), and tritium (³ H). The most common isotope is protium, which consists of one proton and one electron. Deuterium is heavier than protium as it possesses one proton, one neutron and one electron. Tritium comprises one proton, two neutrons and one electron.
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